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Limitations of high-order transformation and incident angle on simplified invisibility cloaks

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Limitations of high-order transformation and incident angle on simplified invisibility cloaks

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dc.contributor.author Zhang, Baile
dc.contributor.author Chen, Hongsheng
dc.contributor.author Wu, Bae-Ian
dc.date.accessioned 2012-10-29T02:50:14Z
dc.date.available 2012-10-29T02:50:14Z
dc.date.copyright 2008
dc.date.issued 2012-10-29
dc.identifier.citation Zhang, B., Chen, H., & Wu, B. I. (2008). Limitations of high-order transformation and incident angle on simplified invisibility cloaks. Optics Express, 16(19), 14655-14660.
dc.identifier.issn 1094-4087
dc.identifier.uri http://hdl.handle.net/10220/8809
dc.description.abstract We studied the scattering from the simplified cylindrical cloaks analytically at both normal and oblique incidences. We found that these simplified cylindrical cloaks may produce a larger scattering at nonnormal incidences than that from an object without any cloak, making this object more “visible”. Even at normal incidence, the high-order transformation with impedance matched at the outer boundary can produce stronger scattering than the linear simplified one without matched impedance. This is due to the inefficiency of guided waves close to the inner boundary. Therefore, a square root transformation can improve scattering by guiding waves away from the inner boundary.
dc.language.iso en
dc.relation.ispartofseries Optics express
dc.rights © 2008 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: [http://dx.doi.org/10.1364/OE.16.014655].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
dc.subject DRNTU::Science::Mathematics
dc.title Limitations of high-order transformation and incident angle on simplified invisibility cloaks
dc.type Journal Article
dc.contributor.school School of Physical and Mathematical Sciences
dc.identifier.doi http://dx.doi.org/10.1364/OE.16.014655
dc.description.version Published version

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